Quote Originally Posted by ic-racer View Post
Correcting convergence with the enlarger has some advantages over front rise.

3) my Durst used to make the following picture
4) 8x10 negative from a lowly Symmar-S 210mm pointed up. Notice that there is no light falloff at the top of the image, as one would get with a wide field lens with a lot of front rise.

Nice demo!